All patients will be operated on under general anesthesia. A para-crestal incision will be done and a mucoperiosteal flap will be reflected exposing the alveolar ridge and the buccal cortex. The surgical guide will be fitted and fixed in place and the outline of the window will be drawn by the aid of the surgical guide using the piezotome then the guide will be removed. Once the osteotomy is completed the bone window will be mobilized for exposure of the neurovascular bundle. The diamond tips will be used for removal of any remaining bone around the nerve. The neurovascular bundle will be dissected and retracted properly. a surgical guide will be inserted for implant osteotomy. The bone block which was removed for the buccal window will be crushed to be particulates and will be mixed with autologous fibrin glue for preparation of sticky bone, the sticky bone will be packed gently in the window area around the neurovascular bundle then will be covered by platelet rich fibrin.

We will use the light touch test and sensitivity mapping by applying moderated pressure with a periodontal probe to depress the skin by 1-2 mm while the patients will be seated comfortably in a quiet room with their eyes closed throughout the procedures. We will show the hypo aesthetic area as a graphic to illustrate its extension. We will choose this technique because it selects the dysfunction of rapidly adapting long myelinated fibers, which are 90% of the fibers of the IAN.